Joseph s



(No Model.)

J.`S. COOK.v SHAFT GOUPLING.

No. 355,062; Patented Deu. '28, A1,886.

I WITNESSES N. Pains, mmmmgnpmn wasmugwn n4 a UNITED" STATLS PATENTrrice.

JOSEPH S. COOK, OF ATLANTA, GEORGIA.

SHAFT-COUPLING.

ZDECIEICA'IION 'forming part of Letters Patent No. 355,062, datedDecember 28, '1886.

Application filed September 13,1886. Serial No. 213,421. (No model.)

.T @ZZ whom t may concern:

Be it known that I, JOSEPH S. COOK, of Atlanta, in the County of Fultonand State ofl actly the same size or not, and att-he same time toprovide for easily and readily disconnecting the coupling when it isdesired to remove any section or shaft of a line of shafting. To thisend I make my coupling in two separate and distinct halves, each halfconsisting of a split cone-like hub and a sleeve7 both provided withbolt-holes forclainping its shaft independent] y, the hubs and sleevesof the respect ive halves being directly and strongly connected bybolts,uniting the halves in such manner that when the bolts are tappedout the shafts are entirely disconnected.

In accordance with my improvements' the respectively adjacent ends ofthe sections of lines of shafting are coupled together within and bysplit flangedv cone-like hubs having cylindrical bores and tapered orconical exterior surfaces, the flanged cone-like hubs being compressedand clamped about the shafts by sleeves tapered on their inner surfacesto correspond with the taper of the outer surfaces of the hubs, andthese sleeves being forcibly drawn upon and secured about the hubs andthe hubs connected with each other by means of bolts passing throughthehub-iianges as well as through the sleeves and nuts, each' couplingcomplete, consisting of two flanged cone-like hubs and twoclamping-sleeves, together with the requisite bolts (any number desired)and keys or pins to prevent turning on the shafts.

The subject-matter deemed novel will be specifically designated by theclaims, after describing my improvements by the aid of the accompanyingdrawings, in which-'- Figure l is aview in elevation, showing thecoupling clamped upon the adjacent ends of two shafts; Fig. 2, a centrallongitudinal sec-l tion, showing one-half of the coupling in its"clamped position upon a shaft end, and Fig. 3

a View in elevation of one of the flanged conelike hubs on the end of ashaft.

. The two flanged cone-like hubs are each split by a longitudinal slot,a, Fig. 3. They are of similar coustruction,each consisting of the hubproper, A, with the flanged or annular head B, all of the same piece ofiron or other metal.

The object of slotting the flanges is, as well understood, to admit ofthe clamping of the vflanged hub on the shafts when compressed bysleeves being drawn on the tapered hubs. The anged hub is of cylindricalbore-that is to say, the hole for the shaft is of uniform diameterthroughout its length. Exteriorly the hub tapers gradually and regularlyfrom the annuconstruction, and may be made solid or cored out to saveweight of metal, with annular flanges or webs -D D, as shown in thedrawings. or webs, their internal surfaces or bores are inclined ortapered to correspond with the taper of the hubs. A

Boltholes d d are provided in the webs of the clampingsleeves for thebolts E, in number as desired. The bolts pass loosely through theseholes and neatly through the holes b If, provided in the annular headsor iianges of the hubs.

From the above description it will be seen that the coupling is dividedinto two corre- Whether solid or with annular flanges sponding sections,one for each of the adjacent ends of the shafts to be coupled, and theoperation will be understood to be as follows: Keyseats havingpreviously been made in the ends of the shafts to be coupled, and eachiiauged hub ofthe coupling having its keyway of corresponding width,each sleeve is put loosely on IOO tightened with a wrench until theshafts seem solid in the coupling. Instead of the key shown inthedrawingsa pin may be used,if desired.

To provide for the variation in thesize of shafts, as it is almostimpossible to turn two of exactly the same size, the compressi ngsleevesare bored of such size that they will come about ha1f-way between thesmall end of the hub and its annular head or flange to clamp firmly on ashaft of the exact size for which the coupling is intended. If the shaftis a little smaller,by tightening the nuts the sleeve will draw a littlefarther on the hub until the shaft is clamped, or if the shaft is alittle large it will become tight in the coupling before the sleeve isdrawn half-Way.

It will be seen that an important feature of my invention, as comparedwith other devices of this class, is the manner in which the two halvesof the coupling are connected, the connecting-bolts passing not onlythrough the clamping-sleeves, but also through the conelikehubs, thusmaking a direct and verystrng connection between the hubs as well asbetween 2 5 the sleeves.-

What I claim as my own invention is 1. The combination of the twosimilar split cone-like hubs directly and detachably connected with eachother, and the two similar 3o clamping-sleeves securedf one about eachof said hubs, directly and detachabl y connected with each other,substantially as and for the porpose set forth.

2. The combination ofthe two similar split 35 cone-like hubs7 theclamping-sleeves, and the securing-bolts passing through theclampingsleeves and through the cone-like hubs, substantially as and forthe purpose set forth.

In testimony whereof I have hereunto sublo scribed my name.

JOSEPH S. COOK.

